Hi, Using Umbraco 11 and Umbraco Forms 11. Have a multisite with three root nodes each with it's own hostname/domian. Each domain has a Umbraco Forms licens, all in one licens file. Google reCAPTCHA keys is setup including the domain names and configured in appsettings.josn

 "Umbraco": {
      "Forms": {
       "FieldTypes": {
         "Recaptcha2": {
          "PublicKey": "",
          "PrivateKey": ""
        },
        "Recaptcha3": {
          "SiteKey": "***",
          "PrivateKey": "***"
        }
      }
    },
 ....
    }

For the main site/first node it works as expected. But on the other two¨on a page showing a form it directly showes an error on the form "ERROR: reCAPTCHA v3 is missing the Site Key. Please update the configuration to include a value at: Umbraco:Forms:FieldTypes:Recaptcha3:SiteKey" But the key is there in appsettings. I do use uSkinned as well but the problem here I think is with Umbraco Forms.